JK
John Kramer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Kramer across the 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 9-person household.
Age 54
b. ~1876
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Kramer |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 35 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1876 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marie Kramer | Daughter | — | 6 | ~1924 |
| Lillian Kramer | Daughter | — | 19 | ~1911 |
| Laura Kramer | Daughter | — | 1 | ~1929 |
| Mae Kramer | Daughter | — | 10 | ~1920 |
| John Kramer | Head | — | 54 | ~1876 |
| John Kramer | Son | — | 14 | ~1916 |
| Roy Kramer | Son | — | 8 | ~1922 |
| Carl Kramer | Son | — | 17 | ~1913 |
| Katherine Kramer | Spouse | — | 45 | ~1885 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 44
Allegheny, Pennsylvania · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kramer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Germany |
| Mother's Birthplace | England |
| Occupation | laborer |
| Industry | coal mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Year of Naturalization | NH |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 54
Allegheny, Pennsylvania · implied b. ~1876 — 9 household members
| Surname | Kramer |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 35 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Kramer across 2 US Census years (1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
John Kramer
Head · 1930 · age 54 · b. ~1876 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
30 people indexed on this census page (ia:1930:fifteenthcensus00reel1988:0451)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward A Thiel | 24 | Head | Painter | Norway |
| 2 | Agnes Thiel | 23 | Wife | — | Sweden |
| 3 | Thomas A Oberhaus | 29 | Head | Painter | Pennsylvania |
| 4 | Elizabeth E Oberhaus | 28 | Wife | — | Pennsylvania |
| 5 | Thomas A Jr Oberhaus | 5 | Son | — | Pennsylvania |
| 6 | John H Kramer THIS PERSON | 54 | Head | — | Pennsylvania |
| 7 | Katherine E Kramer | 45 | Wife | — | Germany |
| 8 | Lillian K Kramer | 19 | Daughter | Typist | Pennsylvania |
| 9 | Carl J Kramer | 17 | Son | Laborer | Pennsylvania |
| 10 | John J Kramer | 14 | Son | — | Pennsylvania |
| 11 | Mae Kramer | 10 | Daughter | — | Pennsylvania |
| 12 | Roy Kramer | 8 | Son | — | Pennsylvania |
| 13 | Marie Kramer | 6 | Daughter | — | Pennsylvania |
| 14 | Laura Kramer | 1 | Daughter | — | Pennsylvania |
| 15 | Sophie Mussman | 51 | Head | — | Vienna Austria |
| 16 | Doris S (At) Mussman | 17 | Daughter | — | Pennsylvania |
| 17 | Samuel H Mussman | 24 | Son | Laborer | Vienna Austria |
| 18 | Alexander Mussman | 7 | Son | — | Pennsylvania |
| 19 | Samuel H Jr Mussman | 4 | Son | — | Pennsylvania |
| 20 | Lawrence Mauk | 22 | — | Laborer | Pennsylvania |
| 21 | Frances E Mauk | 21 | Wife | — | Pennsylvania |
| 22 | Marie V Mauk | 1 | Daughter | — | Pennsylvania |
| 23 | Milan Kernich | 46 | Head | Laborer | Serbia |
| 24 | Helen Kernich | 43 | Wife | — | Serbia |
| 25 | Michael Kernich | 7 | Son | — | Pennsylvania |
| 26 | Sophie Kernich | 6 | Daughter | — | Pennsylvania |
| 27 | Louis E Whittaker | 45 | Head | — | Russia |
| 28 | John R Whittaker | 19 | Son | Laborer | Pennsylvania |
| 29 | George Beck | 55 | Head | — | Germany |
| 30 | Julia H Beck | 53 | Wife | — | Vienna Austria |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)